Equivalent & Substitute Parts for 278KXM016M

Part Overview

The 278KXM016M is a 2700 µF, 16 V aluminum electrolytic capacitor manufactured by Cornell Dubilier / Illinois Capacitor in the KXM series. This radial, through-hole component is designed for general-purpose applications requiring stable capacitance and low equivalent series resistance in compact form factors.

The product maintains Active status with 926 units in current inventory. Substitute parts become necessary when inventory constraints occur, when design requirements favor extended operational lifetime, or when alternative sourcing is required for supply chain continuity.

Substiute Parts

278KXM016M

Cornell Dubilier / Illinois CapacitorIn Stock: 1033278KXM016M Datasheet

Current PartRFQ

UPW1C272MHD

NichiconIn Stock: 1434UPW1C272MHD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 278KXM016M is determined by strict equivalence across the following parameters:

Critical Electrical Parameters:

• Capacitance value: 2700 µF (exact match required)
• Voltage rating: 16 V (exact match required)
• Tolerance: ±20% (exact match required)
• Polarization: Polar (exact match required)
• Operating temperature range: -55°C to 105°C (minimum requirement)

Critical Mechanical Parameters:

• Package type: Radial, Can (exact match required)
• Mounting type: Through Hole (exact match required)
• Lead spacing: 5.00 mm (exact match required)
• Physical dimensions: Compatible with 0.492" diameter and height ≤ 1.260"

Regulatory & Compliance Parameters:

• RoHS3 Compliant status (required for new designs)
• REACH Unaffected status (required for new designs)

Secondary performance parameters (ESR, ripple current, impedance, lifetime) may vary within acceptable ranges provided all critical parameters match exactly. Substitute parts may exhibit improved performance characteristics (lower ESR, higher ripple current capacity, extended lifetime) without compromising compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 278KXM016M (Cornell Dubilier KXM Series)

The 278KXM016M is the recommended component for new designs. It maintains Active product status, ensuring long-term availability and manufacturer support. The part is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. With 926 units in inventory, supply continuity is assured for immediate production requirements.

Substitute Selection: UPW1C272MHD (Nichicon UPW Series)

The UPW1C272MHD qualifies as an electrical and mechanical equivalent. All critical parameters match exactly: 2700 µF capacitance, 16 V rating, ±20% tolerance, 5.00 mm lead spacing, radial through-hole package, and -55°C to 105°C operating range. Both parts are ROHS3 compliant and REACH unaffected.

The UPW1C272MHD exhibits improved performance in lifetime (7000 hours versus 5000 hours at 105°C) and impedance (25 mOhms versus 41 mOhms). However, the UPW series carries "Not For New Designs" status, restricting its use to legacy system maintenance or inventory replacement scenarios only.

Selection Criteria:

• New designs: Use 278KXM016M exclusively
• Legacy system maintenance: UPW1C272MHD is acceptable as direct replacement
• Inventory constraints: Verify product status before substitution
• Performance-critical applications: Compare ripple current requirements; 278KXM016M provides higher ripple current capacity

Frequently Asked Questions (FAQ)

Q: Can UPW1C272MHD be used in new product designs?

A: No. The UPW1C272MHD carries "Not For New Designs" status. The 278KXM016M must be used for new designs to ensure long-term manufacturer support and compliance with design lifecycle requirements.

Q: Are the physical dimensions compatible for PCB layout?

A: Yes. Both parts use identical lead spacing (5.00 mm) and radial, can-type packages. The UPW1C272MHD height (31.50 mm) is slightly less than the 278KXM016M (32.00 mm), ensuring mechanical compatibility in existing PCB layouts designed for the main part.

Q: What is the difference in ripple current capacity?

A: The 278KXM016M provides higher ripple current ratings: 2.468 A at 120 Hz and 3.29 A at 100 kHz. The UPW1C272MHD provides 1.964 A at 120 Hz and 2.31 A at 100 kHz. Applications requiring maximum ripple current handling should use the 278KXM016M.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the 278KXM016M and UPW1C272MHD are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Why does the UPW1C272MHD have longer lifetime but "Not For New Designs" status?

A: Product status reflects manufacturer support and design lifecycle policies, not performance capability. The UPW series may be discontinued or have limited production allocation. The "Not For New Designs" designation directs engineers toward active product lines for long-term supply assurance.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes, for replacement purposes only. The UPW1C272MHD is mechanically and electrically compatible with the 278KXM016M in existing through-hole PCB layouts. However, new designs must specify the 278KXM016M.

Q: What is the significance of the impedance difference?

A: Lower impedance (25 mOhms in UPW1C272MHD versus 41 mOhms in 278KXM016M) indicates better high-frequency performance and reduced voltage ripple. For applications sensitive to impedance characteristics, verify that the substitute meets specific circuit requirements.